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2013年(3)

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发布时间:2013-05-13 15:49:49

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发布时间:2013-05-13 15:05:58

OPERATING MODESARM7TDMI supports seven modes of operation:??User (usr): The normal ARM program execution state??FIQ (fiq): Designed to support a data transfer or channel process??IRQ (irq): Used for general-purpose interrupt handling??Supervisor (svc): Protected mode for the operating s.........【阅读全文】

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发布时间:2013-05-13 15:05:55

OPERATING MODESARM7TDMI supports seven modes of operation:??User (usr): The normal ARM program execution state??FIQ (fiq): Designed to support a data transfer or channel process??IRQ (irq): Used for general-purpose interrupt handling??Supervisor (svc): Protected mode for the operating s.........【阅读全文】

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